This
is the smallest fundamental size of data storage. It is a binary
digit meaning that it can take the value of either 1 or 0. All
computer data can be broken down to a string of these 1 and
0. When represented as a string it is called binary code.

Byte: 8 Bits

A
single byte stores eight bits, eight 1's or 0's. This octet
of bits is the smallest unit for a base 1,000 order of magnitude
naming system as follows: